img {
  display: block;
  margin: 0 auto;
}

a{
    display: inline-block;
  font-size: 20px;
  font-weight: bold;
  padding: 10px 20px;
  background-color: black;
  color: white;
  text-decoration: none;
}
.container {
    text-align: center;
    padding: 20px;
}